Question 9 The scores on the Chemistry final are approximately normally distributed with a mean of 78 and a standard deviation of 5. If 90 students
took the exam, approximately how many scored above 83%?

Solve |2x - 5| = 4 if anyone could , that would be great

Which function in vertex form is equivalent to f(x) = x2 + 6x + 3? f(x) = (x + 3)2 + 3 f(x) = (x + 3)2 − 6 f(x) = (x + 6)2 + 3 f(x) = (x + 6)2 − 6

Arectangular garden is 5 feet long and 3 feet wide. a second rectangular garden has dimensions that are double the dimensions of the first garden. what is the percent of change in perimeter from the first garden to the second garden?